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Discussion Starter #1 (Edited)
Backstory:
'09 Colorado 2.9 auto / truck has been setting for about a year. Been driving a little danger ranger to work that's paid for and a little easier on gas. Would always start the truck on a weekly basis then the battery went dead and it has set for about the last 7 months. Decided I would jump it and get it back the house (being kept at a relatives). Truck will crank but won't start. The passlock is not on or flashing, but there is no sound from the fuel pump. I checked the codes and got a pending U0109 which indicates there is a comm. issue with the fuel system control module. I installed a new module and still have the same issue and code. Installed a donor battery that I know is in good shape and it will crank all day with no fuel pump pressure/noise. Can cycle the key and it will never prime. All interior lights bells, whistles, ext. lights etc. work fine. I have checked the FSCM fuse as well as all the other fuses and they are fine. I am running out of options and it's about to the point to where I will need to take it to a dealer cause I'm tired of chasing gremlins.....Thanks..
 

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Discussion Starter #2
Is it possible that when the battery went dead and it sat for so long the ECU lost its memory of the keyset and just isn't triggering the passlock to flash?
 

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Perhaps a schematic guru can lead you towards a common ground point that has gone bad?
 

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Discussion Starter #4
A common ground does seem like a plausible root cause. The truck has sat outside in the elements for around a year. Anyone know where the main ground connection points are?
 

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There are two ground pack under the hood. One on each side of the inner fenders. One is right behind the air box and one is behind the battery. Idk of these ground are your issue but they are a known issue
Let me know of you would like pics I can get them in the morning

Sent from AutoGuide.com Free App
 

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Check the ground pack on the driver's side fender.
http://www.355nation.net/forum/i4-i...7-throwing-codes-p0192-p069e.html#post3203265

http://www.355nation.net/forum/i4-i5-engine-drivetrain/114889-trouble-code-u0109.html#post3197738

Did you check the Mega fuse? Was the FPCM reprogrammed after you replaced it?


There was a safety recall on this....
http://www.355nation.net/forum/i4-i5...ml#post1463804


Vehicle Make / Model:
2009 CHEVROLET / COLORADO
2009 GMC / CANYON

NHTSA Campaign ID Number:
09V154000

Summary:
GM IS RECALLING 27,188 MY 2009 CADILLAC ESCALADE, ESCALADE HYBRID, ESCALADE ESV, AND ESCALADE EXT; CHEVROLET AVALANCHE, SUBURBAN, TAHOE, TAHOE HYBRID, AND COLORADO; AND GMC YUKON, YUKON HYBRID, YUKON XL, AND CANYON VEHICLES. THE FUEL SYSTEM CONTROL MODULES MAY HAVE A CONDITION IN WHICH AN ADHESIVE SEPARATION OF THE ROOM TEMPERATURE VULCANIZING (RTV) SEAL BETWEEN THE SEAL AND THE HOUSING MAY ALLOW WATER TO SEEP INTO THE MODULE.

Consequence:
WATER IN THE MODULE COULD CAUSE A SHORT OR OPEN CIRCUIT, ILLUMINATION OF THE SERVICE ENGINE SOON LAMP, SETTING OF DIAGNOSTIC TROUBLE CODES OR THE ENGINE MAY BE HARD TO START, MAY NOT START OR MAY STALL INCREASING THE RISK OF A CRASH.

Remedy:
DEALERS WILL INSTALL A NEW FUEL SYSTEM CONTROL MODULE FREE OF CHARGE. THE RECALL BEGAN ON MAY 18, 2009. OWNERS MAY CONTACT CADILLAC AT 1-866-982-2339, CHEVROLET AT 1-800-630-2438 AND GMC AT 1-866-996-9463 OR AT GM Owners Center - GM.

Notes:
GM RECALL NO. 08411. OWNERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV .
 

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Discussion Starter #7
I'm more than a little aggravated with my local dealer parts dept. I specifically asked them when I bought the FSCM if it was plug and play or if it needed to be reprogrammed. My '05 F150 was plug and play. It falls outside of the recall window also. The dealership said no programming was necessary. I have since heard via a reply on here and from an ASE tech friend that it does indeed need to be reprogrammed. Gonna have to have it towed or hailed to the dealer now regardless. Good times
 
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